Blar i Publikasjoner fra Cristin på forfatter "Oppen, Johan"
-
A sustainable model for optimal dynamic allocation of patrol tugs to oil tankers
Assimizele, Brice; Oppen, Johan; Bye, Robin Trulssen (Chapter, 2013) -
Decision support for allocating farmed fish to customer orders using a bi-objective optimization model
Knudseth, Sunniva Haukvik; Molland, Even; Hoff, Arild; Hvattum, Lars Magnus; Oppen, Johan (Peer reviewed; Journal article, 2024)Aquaculture is an important industry in certain coastal areas. Focusing on farming of salmon and trout, an operational planning problem arises with the goal of allocating supply of fish to demand expressed through customer ... -
Decision support for flexible liner shipping
Oppen, Johan (Peer reviewed; Journal article, 2016)We present a transportation problem representing a combination of liner and tramp shipping, where using other modes of transportation is also an option. As an example, we consider transportation of palletized frozen fish ... -
Including containers with dangerous goods in the Multi-Port Master Bay Planning Problem
Gebrearegawi Kebedow, Kiros; Oppen, Johan (Peer reviewed; Journal article, 2018)In this paper we extend existing models for Master Bay Planning by handling containers holding dangerous goods, so-called IMO containers. Incompatible IMO containers must be separated from each other on board a vessel ... -
Including containers with dangerous goods in the Slot Planning Problem
Kebedow, Kiros Gebrearegawi; Oppen, Johan (Chapter, 2019)Container stowage problems are rich optimization problems with both high economic and environmental impact. These problems are typically decomposed into a master bay planning phase, which distributes containers to bay ... -
Preventing environmental disasters from grounding accidents : a case study of tugboat positioning along the Norwegian coast
Assimizele, Brice; Royset, Johannes; Bye, Robin Trulssen; Oppen, Johan (Peer reviewed; Journal article, 2018)An important task of operators in Norwegian vessel traffic services (VTS) centres is to cleverly position tugboats before potential vessel distress calls. Here, we formulate a non-linear binary-integer program, integrated ...